package com.kaiyidiannao.common.util;

import android.view.View;
import android.view.ViewGroup;
import android.widget.ListAdapter;
import android.widget.ListView;

/**
 * Created by david on 14-5-8.
 * 调节UI
 */
public class UIUitls {

    /**
     * 让listview自适应
     * @param listView
     * @param attHeight
     */
    public static void setListViewHeightBasedOnChildren(ListView listView, int attHeight) {
        ListAdapter listAdapter = listView.getAdapter();
        if (listAdapter == null) {
            // pre-condition
            return;
        }

        int totalHeight = 0;
        for (int i = 0; i < listAdapter.getCount(); i++) {
            View listItem = listAdapter.getView(i, null, listView);
            listItem.measure(0, 0);
            totalHeight += listItem.getMeasuredHeight();
        }


        ViewGroup.LayoutParams params = listView.getLayoutParams();
        params.height = totalHeight + (listView.getDividerHeight() * (listAdapter.getCount() - 1)) + attHeight;

        listView.setLayoutParams(params);
    }
}
